658
FNUS75 KMSO 161826
FWSMSO
SPOT FORECAST FOR SPRUCE & SPRUCE RIDGE FIRES
NATIONAL WEATHER SERVICE MISSOULA MT
1226 PM MDT TUE SEP 16 2025
FORECAST IS BASED ON FORECAST START TIME OF 0600 MDT ON SEPTEMBER 17.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
HIGH PRESSURE WILL BRING A WARMING AND DRYING TREND
INTO THURSDAY. AN EASTERLY GRADIENT WILL REMAIN IN PLACE INTO
WEDNESDAY MORNING, WITH WINDS BECOMING TERRAIN DRIVEN WEDNESDAY
AFTERNOON INTO THURSDAY. THE RIDGE REMAINS IN PLACE THROUGH
FRIDAY, BEFORE FLATTENING ON SATURDAY, WITH INCREASING WESTERLY
WINDS SATURDAY INTO SUNDAY AS A DRY COLD FRONT MOVES THROUGH.
WEDNESDAY
* SKY/WEATHER.........SUNNY.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MAX TEMPERATURE.....73-78.
* MIN HUMIDITY........38-43 PERCENT.
* WIND (20 FT)........EAST 2-5 MPH BECOMING EAST-NORTHEAST 3-6 MPH
IN THE AFTERNOON.
* MIXING HEIGHT.......2500 FT AGL INCREASING TO 6000 FT AGL IN THE
AFTERNOON.
* MIXING WINDS........SOUTHEAST 5 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
WEDNESDAY NIGHT
* SKY/WEATHER.........CLEAR.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MIN TEMPERATURE.....51-56.
* MAX HUMIDITY........58-63 PERCENT.
* WIND (20 FT)........VARIABLE/SOUTHEAST 2-5 MPH.
* MIXING HEIGHT.......3500 FT AGL DECREASING TO 500 FT AGL EARLY IN
THE EVENING.
* MIXING WINDS........EAST 5 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
THURSDAY
* SKY/WEATHER.........SUNNY.
* CWR (> 0.10 INCH)...0 PERCENT.
* CHANCE LIGHTNING....0 PERCENT.
* MAX TEMPERATURE.....74-79.
* MIN HUMIDITY........33-38 PERCENT.
* WIND (20 FT)........EAST 2-4 MPH IN THE MORNING BECOMING EAST-
NORTHEAST 3-6 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......3000 FT AGL INCREASING TO 7000 FT AGL.
* MIXING WINDS........SOUTHEAST 5 MPH.
* PRECIP AMOUNT.......0.00 INCHES.
FORECASTER...LUKINBEAL
REQUESTED BY...ERIN RYAN, PSC3
TYPE OF REQUEST...WILDFIRE
.TAG 2521411.11/MSO
.DELDT 09/16/25
.FORMATTERVERSION 2.0.0
.EMAIL 2025.GREENRATTLECOMPLEX.PLANS@FIRENET.GOV
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